In a small pan, heat syrup and butter; stir and cook until butter is melted.
Preheat oven to 375 degrees. In a medium-sized baking dish, combine cereal, pretzels, coconut, nuts and seeds. Pack down to form a consistent layer. Pour syrup/butter evenly over mixture.
Allow snack mix to bake for 25 minutes or until golden brown, stirring occasionally. Store the finished snack at room temperature in an airtight container.